You Are Studying a Mystery Companion to an Evolved Star

question 86

Multiple Choice

You are studying a mystery companion to an evolved star, with mass transfer happening. Which of the following properties suggests that the companion is definitely a black hole?

• A)The mystery companion has a mass of over 3 solar masses.
• B)The mystery companion gives off periodic X- ray bursts.
• C)The mystery companion has an X- ray emitting accretion disk.
• D)The mystery companion has a mass of over 1.4 solar masses.

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Definitions:

Letters Of Credit

Financial instruments issued by a bank guaranteeing a buyer's payment to a seller, within a specific timeframe, under specified conditions.

Material Terms

Essential conditions or clauses within a contract that significantly affect the performance obligations, the breach of which would substantially change the agreement's outcome.

Damages

Monetary compensation that a party is ordered to pay to another for harm or injury.

Negotiable Instrument

A written promise to pay a specified sum of money, payable either on demand or at a specific future date, with the document listing the name of the person who will make the payment.